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SC-900 Premium File: 259 Questions & Answers

Last Update: Sep 27, 2026

SC-900 Training Course: 147 Video Lectures

SC-900 PDF Study Guide: 413 Pages

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Microsoft SC-900 Practice Test 17

Question 160

Following a licensing and controls review at a university hospital, the SOC lead has to defend a design against oversimplified assumptions. The requirement is: A workforce needs a supported mobile authenticator for sign-in approval or passwordless experiences. The review is limited to the control and concept described by this requirement. Which unsupported assumption would MOST directly undermine this requirement?

  1. Assuming every Entra tenant requires on-premises Active Directory deployment.
  2. Assuming Entra ID itself inspects all virtual-network packets like a network security appliance.
  3. Assuming installing the app automatically grants the user more data access rights.
  4. Assuming managed identity means every reachable Azure service automatically permits the workload access.

Explanation

Correct Answer

C:

Assuming installing the app automatically grants the user more data access rights. This belief conflicts with this control principle: Authenticator is an authentication method; it is not an authorization role assignment. The appropriate response instead is: Enable and register Microsoft Authenticator using the organization's permitted authentication-method policy.

Incorrect Answers

A:

Assuming every Entra tenant requires on-premises Active Directory deployment. That caution concerns cloud-only identity; the specific misconception here is: Assuming installing the app automatically grants the user more data access rights.

B:

Assuming Entra ID itself inspects all virtual-network packets like a network security appliance. That caution concerns microsoft entra id cloud identity; the specific misconception here is: Assuming installing the app automatically grants the user more data access rights.

D:

Assuming managed identity means every reachable Azure service automatically permits the workload access. That caution concerns managed identity; the specific misconception here is: Assuming installing the app automatically grants the user more data access rights.

Question 161

During a new service launch at a manufacturer with remote factories, the IT operations director records this concrete requirement: High-risk users need phishing-resistant authentication with a physical security key. The solution must address this requirement directly, without replacing unrelated controls. Which primary response BEST meets the requirement?

  1. Enable supported FIDO2 security-key authentication and register keys for the targeted users.
  2. Review sign-in risk for the specific authentication event and user risk for the overall identity.
  3. Require a compliant device in an appropriately scoped Conditional Access grant control.
  4. Assign an appropriate narrower Microsoft Entra administrative role at the justified scope.

Explanation

Correct Answer

A:

Enable supported FIDO2 security-key authentication and register keys for the targeted users. FIDO2 uses public-key credentials bound to the legitimate authenticator and relying party. To verify, confirm an accepted FIDO2 method in authentication-method registration and a phishing-resistant sign-in.

Incorrect Answers

B:

Review sign-in risk for the specific authentication event and user risk for the overall identity. That addresses a different task: analysts must distinguish suspicious individual authentication events from a potentially compromised identity. The present requirement concerns fido2 security key.

C:

Require a compliant device in an appropriately scoped Conditional Access grant control. That addresses a different task: an enterprise app must be accessible only from devices marked compliant under policy. The present requirement concerns fido2 security key.

D:

Assign an appropriate narrower Microsoft Entra administrative role at the justified scope. That addresses a different task: a junior admin needs to manage users but should not receive global tenant administration. The present requirement concerns fido2 security key.

Question 162

During a new service launch at a manufacturer with remote factories, the IT operations director records this concrete requirement: High-risk users need phishing-resistant authentication with a physical security key. The solution must address this requirement directly, without replacing unrelated controls. The team implements the following response: Enable supported FIDO2 security-key authentication and register keys for the targeted users. Which evidence BEST verifies that the action met its stated purpose?

  1. Review risk detections and affected identities, then confirm the chosen remediation action.
  2. Confirm an accepted FIDO2 method in authentication-method registration and a phishing-resistant sign-in.
  3. Review eligibility, activation request, duration, approval requirements, and audit record.
  4. Inspect the application's service principal, credential or trust, and API permission grants.

Explanation

Correct Answer

B:

Confirm an accepted FIDO2 method in authentication-method registration and a phishing-resistant sign-in. FIDO2 uses public-key credentials bound to the legitimate authenticator and relying party.

Incorrect Answers

A:

Review risk detections and affected identities, then confirm the chosen remediation action. This would test microsoft entra id protection, whereas the required evidence is: Confirm an accepted FIDO2 method in authentication-method registration and a phishing-resistant sign-in.

C:

Review eligibility, activation request, duration, approval requirements, and audit record. This would test privileged identity management, whereas the required evidence is: Confirm an accepted FIDO2 method in authentication-method registration and a phishing-resistant sign-in.

D:

Inspect the application's service principal, credential or trust, and API permission grants. This would test service principal, whereas the required evidence is: Confirm an accepted FIDO2 method in authentication-method registration and a phishing-resistant sign-in.

Question 163

Following a business continuity review at a travel booking platform, the service owner has to defend a design against oversimplified assumptions. The requirement is: High-risk users need phishing-resistant authentication with a physical security key. The review is limited to the control and concept described by this requirement. Which security, identity, or compliance principle MOST directly explains the appropriate approach?

  1. Microsoft Entra ID is Microsoft's cloud identity and access management service, not a network firewall.
  2. Member identities typically represent internal tenant users with organizational lifecycle governance.
  3. FIDO2 uses public-key credentials bound to the legitimate authenticator and relying party.
  4. Conditional Access evaluates identity and contextual signals to enforce defined access decisions.

Explanation

Correct Answer

C:

FIDO2 uses public-key credentials bound to the legitimate authenticator and relying party. It explains why the selected measure—Enable supported FIDO2 security-key authentication and register keys for the targeted users—fits the specific requirement. It should be verified by checking: Confirm an accepted FIDO2 method in authentication-method registration and a phishing-resistant sign-in.

Incorrect Answers

A:

Microsoft Entra ID is Microsoft's cloud identity and access management service, not a network firewall. This describes microsoft entra id cloud identity; the governing concept here is: FIDO2 uses public-key credentials bound to the legitimate authenticator and relying party.

B:

Member identities typically represent internal tenant users with organizational lifecycle governance. This describes member user identity; the governing concept here is: FIDO2 uses public-key credentials bound to the legitimate authenticator and relying party.

D:

Conditional Access evaluates identity and contextual signals to enforce defined access decisions. This describes conditional access signals; the governing concept here is: FIDO2 uses public-key credentials bound to the legitimate authenticator and relying party.

Question 164

Following a business continuity review at a travel booking platform, the service owner has to defend a design against oversimplified assumptions. The requirement is: High-risk users need phishing-resistant authentication with a physical security key. The review is limited to the control and concept described by this requirement. Which unsupported assumption would MOST directly undermine this requirement?

  1. Assuming a guest invitation automatically grants all internal directory privileges.
  2. Assuming an application should authenticate by sharing an administrator's human password.
  3. Assuming Conditional Access is a perimeter packet filter that runs before authentication.
  4. Assuming a reusable code sent to any website provides the same phishing resistance as FIDO2.

Explanation

Correct Answer

D:

Assuming a reusable code sent to any website provides the same phishing resistance as FIDO2. This belief conflicts with this control principle: FIDO2 uses public-key credentials bound to the legitimate authenticator and relying party. The appropriate response instead is: Enable supported FIDO2 security-key authentication and register keys for the targeted users.

Incorrect Answers

A:

Assuming a guest invitation automatically grants all internal directory privileges. That caution concerns b2b guest collaboration; the specific misconception here is: Assuming a reusable code sent to any website provides the same phishing resistance as FIDO2.

B:

Assuming an application should authenticate by sharing an administrator's human password. That caution concerns service principal; the specific misconception here is: Assuming a reusable code sent to any website provides the same phishing resistance as FIDO2.

C:

Assuming Conditional Access is a perimeter packet filter that runs before authentication. That caution concerns conditional access signals; the specific misconception here is: Assuming a reusable code sent to any website provides the same phishing resistance as FIDO2.

Question 165

During a tenant consolidation at a nonprofit association, the technology auditor records this concrete requirement: Managed Windows users need a convenient passwordless sign-in bound to their devices. The solution must address this requirement directly, without replacing unrelated controls. Which primary response BEST meets the requirement?

  1. Use Microsoft Entra Lifecycle Workflows where appropriate to automate defined identity lifecycle actions.
  2. Deploy Windows Hello for Business with supported device-bound key authentication.
  3. Assign suitable access to a managed Entra group rather than maintaining each user assignment individually.
  4. Use Conditional Access report-only mode and review sign-in evaluations before enabling enforcement.

Explanation

Correct Answer

B:

Deploy Windows Hello for Business with supported device-bound key authentication. Windows Hello for Business uses device-associated credentials rather than simply reusing a cloud password. To verify, validate registration and Windows sign-in using the configured Hello credential.

Incorrect Answers

A:

Use Microsoft Entra Lifecycle Workflows where appropriate to automate defined identity lifecycle actions. That addresses a different task: joiner, mover, and leaver events need predictable identity-management tasks. The present requirement concerns windows hello for business.

C:

Assign suitable access to a managed Entra group rather than maintaining each user assignment individually. That addresses a different task: an administrator repeatedly assigns the same application access to a changing staff team. The present requirement concerns windows hello for business.

D:

Use Conditional Access report-only mode and review sign-in evaluations before enabling enforcement. That addresses a different task: a team needs to assess policy effects before enforcing a new requirement across a large population. The present requirement concerns windows hello for business.

Question 166

During a tenant consolidation at a nonprofit association, the technology auditor records this concrete requirement: Managed Windows users need a convenient passwordless sign-in bound to their devices. The solution must address this requirement directly, without replacing unrelated controls. The team implements the following response: Deploy Windows Hello for Business with supported device-bound key authentication. Which evidence BEST verifies that the action met its stated purpose?

  1. Review group membership and validate that application access follows changes in the group.
  2. Check activation attempts for required approvals and confirm access expires after the configured interval.
  3. Validate registration and Windows sign-in using the configured Hello credential.
  4. Trigger a controlled workflow and inspect execution history and resulting user changes.

Explanation

Correct Answer

C:

Validate registration and Windows sign-in using the configured Hello credential. Windows Hello for Business uses device-associated credentials rather than simply reusing a cloud password.

Incorrect Answers

A:

Review group membership and validate that application access follows changes in the group. This would test groups for access, whereas the required evidence is: Validate registration and Windows sign-in using the configured Hello credential.

B:

Check activation attempts for required approvals and confirm access expires after the configured interval. This would test pim approval and activation, whereas the required evidence is: Validate registration and Windows sign-in using the configured Hello credential.

D:

Trigger a controlled workflow and inspect execution history and resulting user changes. This would test lifecycle workflows, whereas the required evidence is: Validate registration and Windows sign-in using the configured Hello credential.

Question 167

Following an external assurance discussion at a local government agency, the enterprise architect has to defend a design against oversimplified assumptions. The requirement is: Managed Windows users need a convenient passwordless sign-in bound to their devices. The review is limited to the control and concept described by this requirement. Which security, identity, or compliance principle MOST directly explains the appropriate approach?

  1. Device compliance can be an access condition when supported and configured.
  2. Cloud-only identities can be managed entirely in Microsoft Entra without on-premises directory synchronization.
  3. Risk-aware access decisions adapt protections to current identity threat indicators.
  4. Windows Hello for Business uses device-associated credentials rather than simply reusing a cloud password.

Explanation

Correct Answer

D:

Windows Hello for Business uses device-associated credentials rather than simply reusing a cloud password. It explains why the selected measure—Deploy Windows Hello for Business with supported device-bound key authentication—fits the specific requirement. It should be verified by checking: Validate registration and Windows sign-in using the configured Hello credential.

Incorrect Answers

A:

Device compliance can be an access condition when supported and configured. This describes conditional access device compliance; the governing concept here is: Windows Hello for Business uses device-associated credentials rather than simply reusing a cloud password.

B:

Cloud-only identities can be managed entirely in Microsoft Entra without on-premises directory synchronization. This describes cloud-only identity; the governing concept here is: Windows Hello for Business uses device-associated credentials rather than simply reusing a cloud password.

C:

Risk-aware access decisions adapt protections to current identity threat indicators. This describes risk-based access control; the governing concept here is: Windows Hello for Business uses device-associated credentials rather than simply reusing a cloud password.

Question 168

Following an external assurance discussion at a local government agency, the enterprise architect has to defend a design against oversimplified assumptions. The requirement is: Managed Windows users need a convenient passwordless sign-in bound to their devices. The review is limited to the control and concept described by this requirement. Which unsupported assumption would MOST directly undermine this requirement?

  1. Assuming a local Windows PIN is sent directly to every remote service as the account password.
  2. Assuming Conditional Access is a perimeter packet filter that runs before authentication.
  3. Assuming deprovisioning tasks reliably occur without triggering events, scoped workflows, or verification.
  4. Assuming every eligible user can silently activate any role without activation settings.

Explanation

Correct Answer

A:

Assuming a local Windows PIN is sent directly to every remote service as the account password. This belief conflicts with this control principle: Windows Hello for Business uses device-associated credentials rather than simply reusing a cloud password. The appropriate response instead is: Deploy Windows Hello for Business with supported device-bound key authentication.

Incorrect Answers

B:

Assuming Conditional Access is a perimeter packet filter that runs before authentication. That caution concerns conditional access signals; the specific misconception here is: Assuming a local Windows PIN is sent directly to every remote service as the account password.

C:

Assuming deprovisioning tasks reliably occur without triggering events, scoped workflows, or verification. That caution concerns lifecycle workflows; the specific misconception here is: Assuming a local Windows PIN is sent directly to every remote service as the account password.

D:

Assuming every eligible user can silently activate any role without activation settings. That caution concerns pim approval and activation; the specific misconception here is: Assuming a local Windows PIN is sent directly to every remote service as the account password.

Question 169

During a security controls rollout at a construction engineering group, the information governance lead records this concrete requirement: Helpdesk tickets surge because eligible users cannot reset forgotten passwords without staff assistance. The solution must address this requirement directly, without replacing unrelated controls. Which primary response BEST meets the requirement?

  1. Use Microsoft Entra ID for cloud identities, authentication, application access, and policy integration.
  2. Use supported risk signals with Conditional Access to require remediation or block appropriate attempts.
  3. Configure Entra self-service password reset registration and appropriate verification methods.
  4. Invite and govern an external guest identity with explicit resource permissions and review.

Explanation

Correct Answer

C:

Configure Entra self-service password reset registration and appropriate verification methods. Self-service password reset permits qualified users to reset their own passwords under defined verification controls. To verify, perform a controlled reset with an eligible user and confirm the expected audit event.

Incorrect Answers

A:

Use Microsoft Entra ID for cloud identities, authentication, application access, and policy integration. That addresses a different task: an organization wants a cloud identity and access directory for Microsoft 365 and Azure-connected applications. The present requirement concerns self-service password reset.

B:

Use supported risk signals with Conditional Access to require remediation or block appropriate attempts. That addresses a different task: the organization wants extra protection for sign-ins that the identity risk system marks suspicious. The present requirement concerns self-service password reset.

D:

Invite and govern an external guest identity with explicit resource permissions and review. That addresses a different task: an external auditor needs time-bounded access to selected resources without becoming an internal employee. The present requirement concerns self-service password reset.

Question 170

During a security controls rollout at a construction engineering group, the information governance lead records this concrete requirement: Helpdesk tickets surge because eligible users cannot reset forgotten passwords without staff assistance. The solution must address this requirement directly, without replacing unrelated controls. The team implements the following response: Configure Entra self-service password reset registration and appropriate verification methods. Which evidence BEST verifies that the action met its stated purpose?

  1. Inspect sign-in report-only results, identify disruptions, and then confirm enabled policy decisions after rollout.
  2. Review targeted sign-ins to verify the user completed the MFA requirement.
  3. Inspect review decisions and verify excess memberships or assignments were removed as intended.
  4. Perform a controlled reset with an eligible user and confirm the expected audit event.

Explanation

Correct Answer

D:

Perform a controlled reset with an eligible user and confirm the expected audit event. Self-service password reset permits qualified users to reset their own passwords under defined verification controls.

Incorrect Answers

A:

Inspect sign-in report-only results, identify disruptions, and then confirm enabled policy decisions after rollout. This would test conditional access report-only, whereas the required evidence is: Perform a controlled reset with an eligible user and confirm the expected audit event.

B:

Review targeted sign-ins to verify the user completed the MFA requirement. This would test conditional access mfa requirement, whereas the required evidence is: Perform a controlled reset with an eligible user and confirm the expected audit event.

C:

Inspect review decisions and verify excess memberships or assignments were removed as intended. This would test access reviews, whereas the required evidence is: Perform a controlled reset with an eligible user and confirm the expected audit event.


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